21411632

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{337}}^1$

素因数の和:394

約数の個数: 60

約数和(自身を含む): 47905416

約数和(自身を除く): 26493784

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 337, 361, 418, 674, 722, 836, 1348, 1444, 1672, 2696, 2888, 3344, 3707, 3971, 5392, 5776, 6403, 7414, 7942, 12806, 14828, 15884, 25612, 29656, 31768, 51224, 59312, 63536, 70433, 102448, 121657, 140866, 243314, 281732, 486628, 563464, 973256, 1126928, 1338227, 1946512, 2676454, 5352908, 10705816, 21411632]

約数ペア:

[(1, 21411632), (2, 10705816), (4, 5352908), (8, 2676454), (11, 1946512), (16, 1338227), (19, 1126928), (22, 973256), (38, 563464), (44, 486628), (76, 281732), (88, 243314), (152, 140866), (176, 121657), (209, 102448), (304, 70433), (337, 63536), (361, 59312), (418, 51224), (674, 31768), (722, 29656), (836, 25612), (1348, 15884), (1444, 14828), (1672, 12806), (2696, 7942), (2888, 7414), (3344, 6403), (3707, 5776), (3971, 5392)]